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Finding the Fourth Proportional to 6,690.69, 9,233.15 and 3,706.53

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Solution

The fourth proportional to 6,690.69, 9,233.15 and 3,706.53 is: 5,115.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.69 : 9,233.15 = 3,706.53 : x
  2. Step 2: Convert to fraction form
    6,690.69/9,233.15 = 3,706.53/x
  3. Step 3: Cross multiply
    6,690.69x = 9,233.15 × 3,706.53
  4. Step 4: Simplify right side
    6,690.69x = 34,222,928.94
  5. Step 5: Solve for x
    x = 34,222,928.94/6,690.69
  6. Step 6: Final answer
    x = 5,115.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.